Screen.



P. CARLSON. SCREEN. APPLIGATION FILED 00T.7, 1913.

1,097,300 Patented May 19, I1914.

AVAVAV Wz'neses. In ven for'.

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UNITED sTATEs PATENT oEEIoE PETER. CARLSON, oE'PnovIDENoE, RHODE ISLAND.

SCREEN.

` Specification of Letters Patent. Application filed October 7, 1913. Serial No. 793,851.

Patented May 19, 1914.

T0 all whom it may concern Beit known that I, PETER CARLSON, a citizen of the United States, residing ,at

Providence, in the count-y of Providence one which is capable of being constructed of light weight and bendable material which will withstand blowing or being pushed from its seat while in use, and to attain these ends in a structure 'which is inexpensive and easily operable.

To these ends essentially my invention consists in such parts and combinations of parts as fall within the scope of the appended claims.

Figures 1 and 2 are frontand end elevations respectively of my novel screen, Fig. 3, a` section on line u u of F ig. l', Fig. 4, an enlarged detail of an end portion of one of the guide strips, and Figs. v5, 6, 7, 8 and 9,.

enlarged sections on lines v f, 'ua/w, w,

y y, and .e a respectively. Like' reference characters Vindicate like parts throughout the views.

In detail the screen comprises two similar frames A, A for holding the mesh a, a, which-frames overlap each other at their inner portions. The frame A comprises the upper strip b and the lower strip b', and the frame A has an upper strip-b2 and lower stript. Upon the inner end portions of the framesA and A respectively are the marginal strips c and c. of similar construction. The end strips ai and d of the respective frames are also of identical construction. It is essential that the material of the described strips should be, of thin sheet metal such as enameled tin or tinned sheetiron, of a bendable character, in order to render the construction` subst-antially light, compact and adaptable to facile engagement with the screen cloth or wire', and with a minimum of fastening agents, and further to facilitate movement of the slidable parts, as well as to avoid the warping of the parts of the frames which occurs in a wooden construction. The strip Z) is formed of sheet metal bent upon itself to tightly grip the edge of the mesh a.

Of similar construc- Y tion is the strip b as shown in Fig. 9 ex ce'pt vthat the material yof the strip is eX- tended and rebent as at e forming a downvwardly'directed `tongue e. The strip o as shown 1n Fig. 5 is also bent uponv itself toclamp they wire fabric a between its' sides, and has also near its end an angular bend to form an inturned rib f; and a similar rib or `flange f is formed upon the' strip c', these ribs insuring a closel contact of vthe slidablc frames and their wire fabric during any change of position of the parts. The end strip d is alsobent upon itself to engage between the bent portions of the strip the fabric a, but the width of the strip is such that after the described clamping the*` strip s again bent at a right angle forming a hollow tongue g disposed at a right angle to the body of the strip, as shown 1n Fig. 6.Y

As the strip d is similar in all respects to the described strip d a detailed description of the latter is omitted. The strip b3 is also bent to clamp the Vfabric a', and is bent in a U shape forming av longitudinally disposed guide tongue l1, creating a channel 71. adapted to receive the strip b. The strip b2 is in detail similar to they described strip b3, and its flange 71, serves as a guide to the stript-which moves in its channel 71,. Integral with the upper margins of the strips b and b8 are forwardly directed flanges j, j', which are adapted to be grasped by the Iingers'to lift the screen.

The screen is mounted for vertical movement in guides K K fixed by screws or othersimilar in construction. These guides K have a body c provided'with a perforation 7: to receive a Vnail or screw by means of which the member K ma be attached to the windowl frame. Upon t e forward portion of the guide member is a straight ange k2 adapted tooverlap the strip al, and upon the opposite side of the memberjc is an inturned U shaped flange 7c3 adapted to loosely engage and retain the angular flange g of the strip d. By v irtue of the peculiar construction of the inter-engaging members ai and K it will be noted that a substantial engagement is assured against any transversel pressure upon the screen frames by wmd or sure forcing the strips l) and to travel in guide strips b2, b3. The. frames may be moved to any desired vertical position in the guide members K by upward pressure upon the flanges y' or otherwise,.thus the entire screen is adapted to adjustment in two directions.

It will be noted that by the particular construction of guide and cooperating hollow tongues or flanges, the engagement is snug and all wabbling of the parts is prevented.

1. In a window screen, the combination of two frames, one frame comprising top and bottom strips provided with U shaped guide flanges, and an end strip provided with an angular flange, the second frame comprising top 4and bottom strips slidable in the first mentioned strips, and an end strip provided with an angular ange, the top and bottom strips of the second frame being adapted to slide in the U shaped flanges of' the first frame, and vertical guide members comprising straight flanges, and U shaped flanges adapted to slidably engage the an! guiar flanges and guides having a straight flange adapted to overlap one of' said strips and an inturned U-shaped flange loosely engaging andretaining the angular flange of said strip.

2. n a window screen, the combination of two frames, one frame comprising horizontal strips provided with id shaped guido flanges, an inner'end strip, and an outer end strip provided with an angular flange, the f second frame comprising horizontal metal strips slidable in the U shaped guide strips of the first frame, an inner end strip, and an outer end strip provided with an angular ange, and vertical guide members comprising straight flanges, and U shaped flanges adapted to slidably snugly engage the angular flanges. Y

3. ln a window screen, the combination With two frames horizontally disposed rela tively and slidably overlapping, the end strip of one of said frames having an angular flange, relatively xed guide members with a straight ange upon its forward portion to overlap the adjacent end strip of one of said frames and Aupon the opposite side with an inturned U-shaped `flange adapted to loosely engage and retain the angular flange on said strip whereby the frames are held againstl displacement by transverse pressure upon the frames.

In testimony whereof l affix my signature in presence of two witnesses.

PETER CARLSGN.

,TWitnesses z Horario E. BELLows, NORMA M. DAVIDSON. l v 

